Reportable Segments (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
	Apr. 23, 2018	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Segment Reporting Information
Sales		$ 319.9	$ 238.2	$ 599.6	$ 442.3
Operating income		23.5	9.9	40.4	10.2
Restructuring costs		0.6	5.0	1.5	9.6
Warranty expense				3.5
Acquisition related costs		0.8	1.0	2.1	1.1
Severance costs		0.2	1.2	0.8	2.5
Commitment and Contingencies
Segment Reporting Information
Warranty expense	$ 3.8
Hudson
Segment Reporting Information
Sales		47.5		90.8
Operating income		6.1		10.3
Operating Segments | Energy & Chemicals
Segment Reporting Information
Sales		100.8	40.0	190.7	79.9
Operating income		5.9	(2.5)	8.7	(2.7)
Restructuring costs		0.2	1.6	0.4	2.1
Operating Segments | Distribution & Storage
Segment Reporting Information
Sales		157.4	137.6	293.5	250.8
Operating income		24.8	16.6	42.9	28.2
Restructuring costs		0.3	0.3	0.5	0.4
Operating Segments | BioMedical
Segment Reporting Information
Sales		62.0	60.6	116.7	111.6
Operating income		8.5	9.8	18.0	14.8
Restructuring costs		0.0	1.4	0.0	4.0
Intersegment eliminations
Segment Reporting Information
Sales		(0.3)	0.0	(1.3)	0.0
Corporate
Segment Reporting Information
Operating income		(15.7)	(14.0)	(29.2)	(30.1)
Restructuring costs		0.1	$ 1.7	0.6	$ 3.1
Severance costs		1.4		1.4
Payroll cost		3.2		3.2
Adjustment to share-based compensation		$ (1.8)		$ (1.8)